Source code for spack.test.multimethod

# Copyright 2013-2022 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

"""Test for multi_method dispatch."""
import pytest

import spack.platforms
import spack.repo
from spack.multimethod import NoSuchMethodError

pytestmark = pytest.mark.usefixtures('mock_packages')


[docs]@pytest.fixture(scope='module', params=['multimethod', 'multimethod-inheritor']) def pkg_name(request): """Make tests run on both multimethod and multimethod-inheritor. This means we test all of our @when methods on a class that uses them directly, AND on a class that inherits them. """ return request.param
[docs]def test_no_version_match(pkg_name): pkg = spack.repo.get(pkg_name + '@2.0') with pytest.raises(NoSuchMethodError): pkg.no_version_2()
[docs]def test_one_version_match(pkg_name): pkg = spack.repo.get(pkg_name + '@1.0') assert pkg.no_version_2() == 1 pkg = spack.repo.get(pkg_name + '@3.0') assert pkg.no_version_2() == 3 pkg = spack.repo.get(pkg_name + '@4.0') assert pkg.no_version_2() == 4
[docs]def test_version_overlap(pkg_name): pkg = spack.repo.get(pkg_name + '@2.0') assert pkg.version_overlap() == 1 pkg = spack.repo.get(pkg_name + '@5.0') assert pkg.version_overlap() == 2
[docs]def test_mpi_version(pkg_name): pkg = spack.repo.get(pkg_name + '^mpich@3.0.4') assert pkg.mpi_version() == 3 pkg = spack.repo.get(pkg_name + '^mpich2@1.2') assert pkg.mpi_version() == 2 pkg = spack.repo.get(pkg_name + '^mpich@1.0') assert pkg.mpi_version() == 1
[docs]def test_undefined_mpi_version(pkg_name): pkg = spack.repo.get(pkg_name + '^mpich@0.4') assert pkg.mpi_version() == 1 pkg = spack.repo.get(pkg_name + '^mpich@1.4') assert pkg.mpi_version() == 1
[docs]def test_default_works(pkg_name): pkg = spack.repo.get(pkg_name + '%gcc') assert pkg.has_a_default() == 'gcc' pkg = spack.repo.get(pkg_name + '%intel') assert pkg.has_a_default() == 'intel' pkg = spack.repo.get(pkg_name + '%pgi') assert pkg.has_a_default() == 'default'
[docs]def test_target_match(pkg_name): platform = spack.platforms.host() targets = list(platform.targets.values()) for target in targets[:-1]: pkg = spack.repo.get(pkg_name + ' target=' + target.name) assert pkg.different_by_target() == target.name pkg = spack.repo.get(pkg_name + ' target=' + targets[-1].name) if len(targets) == 1: assert pkg.different_by_target() == targets[-1].name else: with pytest.raises(NoSuchMethodError): pkg.different_by_target()
[docs]def test_dependency_match(pkg_name): pkg = spack.repo.get(pkg_name + '^zmpi') assert pkg.different_by_dep() == 'zmpi' pkg = spack.repo.get(pkg_name + '^mpich') assert pkg.different_by_dep() == 'mpich' # If we try to switch on some entirely different dep, it's ambiguous, # but should take the first option pkg = spack.repo.get(pkg_name + '^foobar') assert pkg.different_by_dep() == 'mpich'
[docs]def test_virtual_dep_match(pkg_name): pkg = spack.repo.get(pkg_name + '^mpich2') assert pkg.different_by_virtual_dep() == 2 pkg = spack.repo.get(pkg_name + '^mpich@1.0') assert pkg.different_by_virtual_dep() == 1
[docs]def test_multimethod_with_base_class(pkg_name): pkg = spack.repo.get(pkg_name + '@3') assert pkg.base_method() == pkg.spec.name pkg = spack.repo.get(pkg_name + '@1') assert pkg.base_method() == "base_method"
[docs]def test_multimethod_inherited_and_overridden(): pkg = spack.repo.get('multimethod-inheritor@1.0') assert pkg.inherited_and_overridden() == 'inheritor@1.0' pkg = spack.repo.get('multimethod-inheritor@2.0') assert pkg.inherited_and_overridden() == 'base@2.0' pkg = spack.repo.get('multimethod@1.0') assert pkg.inherited_and_overridden() == 'base@1.0' pkg = spack.repo.get('multimethod@2.0') assert pkg.inherited_and_overridden() == 'base@2.0'
[docs]def test_multimethod_diamond_inheritance(): pkg = spack.repo.get('multimethod-diamond@1.0') assert pkg.diamond_inheritance() == 'base_package' pkg = spack.repo.get('multimethod-base@1.0') assert pkg.diamond_inheritance() == 'base_package' pkg = spack.repo.get('multimethod-diamond@2.0') assert pkg.diamond_inheritance() == 'first_parent' pkg = spack.repo.get('multimethod-inheritor@2.0') assert pkg.diamond_inheritance() == 'first_parent' pkg = spack.repo.get('multimethod-diamond@3.0') assert pkg.diamond_inheritance() == 'second_parent' pkg = spack.repo.get('multimethod-diamond-parent@3.0') assert pkg.diamond_inheritance() == 'second_parent' pkg = spack.repo.get('multimethod-diamond@4.0') assert pkg.diamond_inheritance() == 'subclass'
[docs]def test_multimethod_boolean(pkg_name): pkg = spack.repo.get(pkg_name) assert pkg.boolean_true_first() == 'True' assert pkg.boolean_false_first() == 'True'